0:00:00future talking inhibitors used to help these people with perceptible system breast cancer thus bridging
0:00:06the gap transcriptions are very much
0:00:16as everyone in this audience is no data where spring came early this year
0:00:20we have birds outside singing flowers are blooming
0:00:22and i even had a few mosquito bites in early april
0:00:25and this makes sense right animals and plants can take advantage of unseasonably warm weather
0:00:30to get a head start on their breeding season
0:00:33well what i wanna show you today is that weather conditions thousands of kilometres away
0:00:37from here
0:00:37can also exert an important influence on what's going on right in our own backyards
0:00:42and the climate change could potentially disrupt these associations
0:00:46so for my phd i study a small migratory songbird the american red start shown
0:00:51on my slide
0:00:52right starts migrate south during the wintertime to spend the winter in the tropics shown
0:00:57in this graph in orange
0:00:59and then in early spring then migrate up north to north america including ontario to
0:01:04breed
0:01:06no previous research has shown that the amount of rainfall on their tropical wintry habitats
0:01:11is really important for this p c's
0:01:13and that's because read starts feet exclusively on insects an insect abundance is tightly linked
0:01:18to the amount of rainfall in these dried tropical have a task
0:01:22so in years with more rainfall there's more food available for read starts are able
0:01:26to fat not more quickly and depart on their northward migration earlier
0:01:31so i was interested in whether these same patterns translate a onto the breeding grounds
0:01:36in other words in years of greater rainfall down cell
0:01:39do we see red start here in ontario sooner
0:01:42and it turns that we do if you take a look at the figures i've
0:01:45shown here you can see that in years of greater rainfall down so we have
0:01:49read start arriving and breeding right here in ontario earlier
0:01:54and that was promised i want i just like and how these associations could become
0:01:58disrupted by climate change
0:02:00and the problem is that climate scientists for predicting that weather conditions will continue to
0:02:04get drier and drier down in the tropics
0:02:07and so that means less food for these birds
0:02:10later migration
0:02:11and they'll be arriving here to breed later
0:02:14and now that in combination with the fact that were likely to be seen earlier
0:02:17and more springs
0:02:19here in ontario means that these birds might not get here early enough
0:02:24by the time there i've lay their eggs and their checks hatch they may have
0:02:27missed that all important p in insect food abundance that happens here in early spring
0:02:32that they rely on a defeat their checks
0:02:35and this can lead to population declines
0:02:38so i think that's to the research is really valuable because it's allowing scientist to
0:02:41seen these connections between animal behaviors
0:02:44and whether patterns all across the globe for these migratory species
0:02:48and hopefully it'll allow us to best
0:02:52anticipate the challenges that these bases will face with climate change so that we can
0:02:56protect their most vulnerable populations and habitats
0:02:59thank you